Maxim,
Following with this issue, we have different behavior depending on the version of Windows used for recording, I mean, with Windows XP FPS 2, high quality and screen area, 1.175 width and 816 height, we have no gap between audio and video (one hour recording). This client have 3,5Gb RAM and a intel core duo 2,39 GHz. The same recording configuration in a client with Windows7, 8Gb RAM and intel core duo 4 GHZ, we have 40 second gap between audio and video after one hour of recording. As you can see the client with Windows7 has better configuration than the client with Windows XP, however, the results that we get are worst. Do you know if there is any issue with Windows7? Thanks in advance, Antonio